Definition 2.1 (Global Individual Fairness [1]}, [2]}) 
A model \(f_\theta (x)\)  is said to satisfy the global individual fairness property \(\phi \)  if the following holds:
\(\forall x,x^{\prime } \in D_\phi \quad \text{s.t.} \quad d(x,x^{\prime }) = 1 \Longrightarrow h(f_\theta (x)) = h(f_\theta (x^{\prime })), \) 
